Brake-shoe.



No. 790,754. PATENTED MAY 23, 1905. L. E. ROBINSON.

BRAKE SHOE.

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APPLICATION FILED 1330.3, 1904.

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Patented May 23, 1905.

PATENT it FFICE.

LILLIAN E. ROBINSON, OF NEW YORK, N. Y.

BRAKE-SHOE.

SPECIFICATION forming part of Letters Patent N 0. 790,754, dated May 23,1905.

Application filed December 3, 1904. Serial No. 235,299.

To (tZZ whom it may concern.-

Be it known that I, LILLIAN E. RoBINsoN, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Brake-Shoes, ofwhich the following is a specification.

This invention relates to improvements in railway brake-shoes, andespecially to a brakeshoe which is adapted to have attached to the frontor gripping portion thereof a back or rear portion of a partially-wornbrake-shoe, so that partially worn shoes may be entirely used up byapplying them to new brakeshoes, thus saving a waste and utilizing wornportions of brake-shoes which are at the present time rendered unfit foruse and are discarded.

To this end it consists of a brake-shoe of ordinary construction havingan attachinglug on the back side thereof, through which runs an openingfor receiving the attachingpin on the brake-head and for other purposes,which will hereinafter be more fully set forth. The gripping-surface ofthe shoe is provided with a socket to allow the insertion of the lug ofa partially-worn brake-shoe therein. The socket is provided also with anenlarged inner end and with a groove or grooves to admit the insertionof a flexible fastening-pin.

[n the drawings herewith accompanying and forming a part of thisapplication, Figure 1 is a sectional view of a brake-shoe, showing theflexible pin and partially-worn shoe in process of insertion. Fig. 2 isa sectional view of the brake-shoe with the partially-worn shoe inplace. Fig. 3 is a detail of a form of flexible pin. Figs. 4 and 5 aresectional views showing a slight modification in the flexible pin, andFig. 6 is a plan view of the gripping-face.

In said drawings, A represents a brake-shoe of ordinary descriptionprovided with guiding or looking lugs B on the back thereof. Also on theback thereof is an attaching-lug O, provided with an opening D. Thegripping-surface of said brake-shoe is provided with a socket E,extending partially into said shoe. Said socket is provided also with aninterior recess or enlarged inner end F and groove G, the purpose ofthis latter being to allow the insertion of a flexible pin H within theopening and of the former to cause the pin when the lug of apartially-worn brakeshoe is inserted in the opening to be bent into aholding position. The pin may be of any desired shape, it beingnecessary only that the same be constructed of such material and of suchform as to allow it to be bent so that the free ends of the pin willenter the opening in the attaching-lug of the partially-worn brake-shoeand fit closely in the enlarged inner end of the socket, the enlargedinner end being for the purpose of receiving the extended portion of theflexible pin when the lug of a partially-worn brake-shoe is insertedwithin the socket in the gripping-face, so that when the said wornbrake-shoe is driven home the extended end of the pin will rest in theenlarged end of the socket and hold the inserted shoe in position. Whena brakeshoe becomes so worn that it will not perform its worksatisfactorily, the same is removed from the brake-head and a newbrakeshoe attached thereto. A flexible pin is then placed on the lug ofpartially-worn shoe or bent so as to enter the opening in the lug, andthe lug is then driven into the socket. The pressure caused by drivingthe lug into the opening upon the flexible pin causes the same to bestraightened, and consequently to lit into the enlarged inner end of thesocket and [ill the same, thereby firmly holding the partially-wornbrake-shoe in position.

The advantages of this invention are that it provides means for using uppartially-worn shoes, for by the insertion of a partially-wornbrake-shoe in new shoes the partially-worn shoes may be used up insteadof being thrown on the scrap heap, as is the custom at present.

Having described my invention and its use, what I claim as my invention,and desire to secure by Letters Patent, is

1. A brake-shoe having an attaching-lug with a lateral opening runningtherethrough, a socket in the gripping-face of said shoe, said sockethaving a lateral offset, and a flexible bent pin adapted to be bent intosaid offset and to take into the opening in the lug of another shoe whenit is inserted in said socket.

In testimony whereofIhave signed my name 10 to this specification, inpresence of two subscribing Witnesses, this 29th day of November, 1904.

LILLIAN E. ROBINSON.

In presence 01":--

ELGIN C. VERRILL, MARION RICHARDS.

